DYNAMIC MODELING OF THE ELECTRO-MECHANICAL CONFIGURATION OF THE TOYOTA HYBRID SYSTEM SERIES/PARALLEL POWER TRAIN

다국어 초록 (Multilingual Abstract)

The hybridization of the conventional thermal vehicles nowadays constitutes a paramount importance for car manufacturers, facing the challenge of minimizing the consumption of the road transport. Although hybrid power train technologies did not converge towards a single solution, series/parallel power trains with power-split electromechanical transmissions prove to be the most promising hybrid technology. In fact, these power trains show maximum power train overall efficiency and maximum fuel reduction in almost all driving conditions compared to the conventional and other hybrid power trains. This paper addresses the model and design of the electro-mechanical configuration of one of the most effective HEV power trains: case study of the 2nd generation Prius. It presents the simulation work of the overall operation of the Toyota Hybrid System (THS-II) of the Prius, and explores not only its power-split eCVT innovative transmission system but also its overall supervision controller for energy management. The kinematic and dynamic behaviors of the THS-II power train are explained based on the power-split aspect of its transmission through a planetary gear train. Then, the possible regular driving functionalities that result from its eCVT operation and the energy flow within its power train are outlined. A feedforward dynamic model of the studied power train is next proposed, supervised by a rule-based engineering intuition controller. The energy consumption of the THS-II proposed model has been validated by comparing simulation results to published results on European, American and Japanese regulatory driving cycles.

참고문헌 (Reference)

1 ANL PSAT, "Transmissions Mécaniques de Puissance" Technosup, Edition Ellipses 2001 2001

2 Sasaki, S., "Toyota’s Newly Developed Hybrid Power train" 1998

3 Smokers, R., "Test methods for evaluating energy consumption and emissions of vehicles with electric, hybrid and fuel cell power trains" 1999

4 Toyota TechDoc, "Système de Commande THS-II"

5 Mansour, C., "Simulation and Validation of Models of Hybrid Vehicles: Case study of the Toyota Prius" MINES ParisTech. 2009

6 Hofman, T., "Rule-base energy management strategies for hybrid vehicles" 1 (1): 71-94, 2007

7 Hsu, J. S., "Report on Toyota Prius Motor Torque Capability, Torque Property, No-Load Back EMF and MechanicalLosses" ORNL 2004

8 Hsu, J. S., "Report on Toyota Prius Motor Design and Manufacturing Assessment" ORNL 2004

9 Sciarretta, A., "Optimal control of parallel hybrid electric vehicles" 12 (12): 352-363, 2004

10 Mansour, C., "Modeling of the THS-II series/parallel power train and its energy management system" 2010

11 AVL Cruise, "Les Trains Planétaires"

12 Olszewski, M., "Evaluation of 2004 Toyota Prius Hybrid Electric Drive System" ORNL 2006

13 Mendes, P., "Dual mode electric infinitely variable transmission" Pole Universitaire Léonard de Vinci – PARIS La défense 2007

14 Muta, K., "Development of new-generation hybrid system THS II – Drastic improvement of power performance and fuel economy" SAE 2004

15 Toyota TechDoc, "Construction des Principaux Organes Constitutifs" 2003

16 Toyota TechDoc, "Caractéristiques Techniques Principales"

17 Meisel, J., "An analytic foundation for the Toyota Prius THS-II power train with a comparison to a strong parallel hybrid-electric power train" SAE 2006

18 Musardo, C., "A-ECMS: an adaptive algorithm for hybrid electric vehicle energy management" 2005

19 Pisu, P., "A comparative study of supervisory control strategies for hybrid electric vehicles" 15 (15): 506-518, 2007